Alternating siphon.



No. 869,482. PATBNTED OCT. 29. 1907. R. C. DE LA HUNT.

ALTBRNATING SIPHON.

APPLIGATION FILED 113.18, 1907.

fltfouxufv 1u: mmms news cc., wnsnmmorv. n. c.

REVERDY CLEMENT DE LA HUNT, OF CEDAR RAPIDS, IOWA.

ALTERNATING SIPHON.

Specification of Letters Patent.

Patented Oct. 29, 1907.

Application tiled February 18| 1907. Serial No. 358,108.

To all whom it may concern:

Be it known that I, REvnnoY CLEMENT Dn LA HUNT, a citizen of the UnitedStates, residing at Cedar Rapids, in the county of Linn and State ofIowa, have invented certain new and useful Improvements in AlternatingSiphons; and I do declare the followingl to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters and figures ofreference marked thereon, which form apart of this specification.

My invention relates to flush siphons, but more particularly toalternating siphons for flush tanks, and my invention has for its objectto provide an arrangement of the siphons whereby the refilling of thetrap seal to the normal level is insured and air is freely admitted tothe Siphon to break the siphonage and revent the siphon.

A further object of my invention is to provide alternating siphons whichwill operate with precision and reliability without the use of auxiliarydevices, such as blow-off traps, feed pipes, external charging tanks,wells, etc.

A further object of my invention is to lprovide a siphon of cheaperconstruction than those heretofore, composed of a minimum number ofparts and arranged in such manner that a smaller flask, less moldingsand and less labor is required in their manufacture.

A further object of my invention is to provide means for restoring theseal of the trap when it is exhausted by the discharge of the siphon,and to insure alternating discharge by weakening the seal of the idlesiphon during the process of discharging the active one.

With all these objects in view my invention consists in constructing theintake or bell rigid with the trap, in such manner that a much lighterintake or bell can be employed than was heretofore possible.

My invention further consists in combining integrally the intaking limbor bell with the upper end of the long leg of the trap and in providinga partition within the intaking limb, dividing the intake equally andthereby forming a double or compound siphon.

My invention further consists in providing the mouth of one of theseinlets longer than the other, in such manner that it will projectdownwardly some distance below the other and thus continue in action fora short time after siphonage ceases in the other intake.

My invention also consists in certain other novel features ofconstruction and in combinations of parts, all of which will be rstfully described and afterwards specifically pointed out in the appendedclaims.

Referring to the accompanying drawing: Figure l is a vertical sectiontaken through a flush tank and illustrating one of the alternatingsiphons in operative poi l l l i sition. Fig. 2 is a vertical sectionalview taken on line 2 2 of Fig. l. Fig. 3 is a bottom plan view of theintake or bell and integral intaking limb, and Fig. 4 is a verticalsectional view taken on line l1 4 of Fig. 3.

Like numerals of reference indicate the same parts throughout theseveral figures in which ,H

'.l indicates the flush tank which may be of any desired size orconstruction.

2 and 3 indicate the alternating siphons which comprise a trap t havinga long leg5 and a short leg G.

7 indicates the intake or bell which, as shown in Figs. 1, 3 and 1, isformed integral with the intaking limb S, said intaking limb beingtapered as shown in Figs. l and 3.

Arranged vertically within the intake or bell 7 and extending centrallythrough and entirely across the intaking limb S is a partition 9, and itwill be seen by referring to Fig. l that thc mouth l0 of the intake orbell 7 proj eels downwardly some distance below the mouth ll of theintake or bell on the opposite side of the partition 9.

As shown in Fig. l the end l2 of the short leg G of the trap et is cutat a slight angle and is provided with an annular' bead 'I3 upon whichthe elbow Ilff rests at a slight angle as shown, and a small vent pipel5 may be connected to said elbow la and extend upwardly to a pointabove the surface of the water in the flush tank, said vent beingprovided, if desired, with a return arm as shown in dotted lines in Fig.l..

Referring to the long arm 5 of the trap t it will be seen that a topsocket l5 is provided at the upper end thereof within which the intakinglimb of the bell or intake extends. This construction is then made tightand rigid by filling of suitable cement 1G.

Having thus fully described the several parts of my invention itsoperation is as follows: A, Al and A2 represent the levels of the liquidin the tanks and siphons at the time the liquid seals in the siphonswill be forced out and the siphon brought into siphonic action. C and(il vrepresent the normal levels of the liquid in the tank and trapafter the tank has been emptied tothe point that siphonage ceases. Asthe liquid is emptied from the tank and falls below the mouth .lll ofthe bell or intake siphonage ceascs in that portion of thc bell orintake, but continues in the opposite portion of the bell or intake onthe opposite side of the partition 9 until the water reaches the level(i, thus insuring the refilling of the trap seal to a normal level, andalso insuring the drawing out of the liquid from the tank until itslevel is below the mouth of the shorter intake, thereby freely admittingair, breaking the siphonage and reventing the siphon,

rlhis positive construction l'or providing a complete restoration of theseal in the trap, when exhausted by the discharge of the siphon,overcomes the defect in operation brought about by the lilling of thelong and l short legs with the liquid when siphonage is broken, so thatthe inertia of the subsiding column oi liquid in the long leg causes itslevel to fall below the top ol the short leg, thus exhausting andweakening the seal ol the discharge Siphon equally with that oi the idleSiphon. The result of such a defect is that the siphons, instead oldischarging alternately as intended, come into action any number oftimes consecutively; for the reason that in the operation of alternatingsiphons the seal of the idle Siphon must be weakened during the processoi discharging the active one, otherwise consecutive discharge of thesame Siphon may result, and unless provision is made to fully restorethe seal in the active Siphon after siphonage ceases, said active Siphonwill be weakened equally with, or even more than the idle Siphon.

By means oi` my construction about described and illustrated in theaccompanying drawing a complete and lull restoration oi the seal iseffected in the active Siphon after siphonage ceases, thereby securingsiphonic action in the ellow Siphon duringlthe next of consecutiveemptying ot the tank.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent of the United States, is

1. In a Siphon, the combination of a trap havingone long and one shortleg, of an intake or bell, an intaking limb formed integral therewith, apartition in said intake or bell and extending centrally through saidintegral intaking limb, the mouth of Said intake or bell being lower onone side of Said partition than on the other, substantially asdescribed. K

2. In a Siphon, the combination of a trap, an intake or bell, anintaking limb formed integral with said intake or bell, a partition insaid intake or bell and extending through said integral intaking limb,the mouth of said intake or bell being, lower on one side of saidpartition than on the other, Substantially as described.

3. In a Siphon, the combination of a trap, an intake or bell, anintakingl limb associated with said intake or bell,

a partition in said intake or bell and in said intakingv limb, the mouthof said intake or bell being lower on one side of Said partition than onthe other, substantially as described.

+L. In a Siphon, the combination of a trap, an intake or bell, anintaking limb associated with said intake or bell, a partition in saidintake or bell and in Said intaking limb extending entirely across thesame, and means for restoring` the Seal in the trap after siphonageceases, Substantially aS described.

5. In a Siphon, the combination of a trap, an intake or bell associatedtherewith, a partition in said bell or intake extending, entirely acrossthe same, and means for causing siplionic action to continue on one sideof said partition after it ceases on the other, Substantially asdescribed.

G. In a Siphon, the combination of a trap, an intake or bell, anintakingr limb formed integral with said intake or bell and a partitionextending entirely across Said intake or bell and across Said intaking'limb, Substantially aS described.

In testimony whereof, I aix my Signature, in presence of two witnesses.

REVERDY CLEMENT DE LA HUNT.

Witnesses B. Tai'r, C. G. FoS'rnR.

